Solving Display Problems - HP Rp3000 - Point of Sale System Troubleshooting Manual

Solving Display Problems

If you encounter display problems, see the documentation that came with the monitor and the common
causes and solutions listed in the following table.
Table 2-4 Solving Display Problems
Blank screen (no video).
Cause
Monitor is not turned on and the monitor light is not on.
Bad monitor.
The cable connections are not correct.
You may have a screen blanking utility installed or energy
saver features are enabled.
System ROM is corrupted; system is running in Boot Block
Emergency Recovery Mode (indicated by eight beeps).
You are using a fixed-sync monitor and it will not sync at the
resolution chosen.
Computer is in standby mode.
Monitor cable is plugged into the wrong connector.
Monitor settings in the computer are not compatible with the
monitor.
Blank screen and the power LED flashes Red five times, once every second, followed by a two second pause, and the
computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause
Pre-video memory error.
ENWW
Solution
Turn on the monitor and check that the monitor light is on.
Try a different monitor.
Check the cable connection from the monitor to the computer
and to the electrical outlet.
Press any key or click the mouse button and, if set, type your
password.
Reflash the system ROM with the latest BIOS image. See the
"Boot Block Emergency Recovery Mode" section of the
Desktop Management Guide for more information.
Be sure that the monitor can accept the same horizontal scan
rate as the resolution chosen.
Press the power button to resume from standby mode.
CAUTION: When attempting to resume from standby mode,
do not hold down the power button for more than four seconds.
Otherwise, the computer will shut down and you will lose any
unsaved data.
Ensure that the monitor is plugged into an active connector on
the rear of the computer. If another connector is available,
connect the monitor to that connector and reboot the system.
1. Restart the computer and press
you see "Press F8" in the bottom right corner of the
screen.
2. Using the keyboard arrow
Mode and press Enter.
3. In Windows Control Panel, double-click the Display icon
and select the Settings tab.
4. Use the sliding control to reset the resolution.
Solution
1. Reseat DIMMs. Power on the system.
2. Replace DIMMs one at a time to isolate the faulty module.
3. Replace third-party memory with HP memory.
4. Replace the system board.
Solving Display Problems
F8 during startup when
keys, select Enable VGA
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